FairValue

Checking model

Esc

  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
  • EnvironmentStoriesValuations, head-to-heads and research findings, told as stories.
  • TerminalPlayer ExplorerSearch, filter and sort the player export.
  • TerminalComparison StudioTwo to four players on one scale.
  • TerminalWatchlistsNamed collections, kept in this browser.
  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

↑ ↓ to move · Enter to open · Esc to closeLoading player index…

Cenk

Tosun

CFTürkiye · Kasimpasa

№ 45671Emerging €233k +0.25

Player dossierSüper Lig

CenkTosun

CFCentre-ForwardAttack

Club
Kasimpasa
League
Süper Lig
Nationality
Türkiye
Age
34
Height
183 cm
Foot
Right
Valued
21 May 2026

Reading the valuation

The market values Tosun at €300k. Model A, which never saw Tosun during training, estimates €233k: the market value is 29% above that estimate.

That is a factor of ×1.29. Model A's typical held-out miss is ×1.50 either way, so this gap is within its usual error.

Without league and club, Model B estimates €467k, further from the market. Model B is usually further off (typical miss ×2.07): league and club explain much of how the market prices players.

A gap describes the model's arithmetic for this player's inputs, not what the player is worth.

▲ +0.25A €233k▼ −0.44B €467k
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
39
Minutes
724
Goals
2
Assists
2
Started
5/39
Min / app
19
Cards
5Y 0R

Club matches, two years to the valuation date

The Valuation Journey

What moves Model A

Asking the prediction API to explain Model A for Tosun…

SHAP describes the model's arithmetic for this player's inputs, not what causes market value. Model B can be explained only by the live service; Model A also has a published explanation for the research players.

Model A vs Model B against the observed €300k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €300kModel A €233k

Asking the prediction API…

Held-out estimates come from cross-validation, with this player outside the training data: the honest comparison. Served models were refitted on every player, this one included, so they sit closer to the market. Shaded band: Model A's typical miss (×1.50 either way).

Player traitspercentiles vs 1,583 attackers

Cenk Tosun's percentiles among attackers: Goals per 90 47th, Assists per 90 82nd, Minutes, two years 9th, Starts 1st, Minutes, last 365 days 13th, European club minutes 71st47thGoals82ndAssists9thMinutes1stStarts13thRecent71stEurope

Dashed ring: the attacker median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.25 this player0.15 attacker median82nd percentile

0.00peer deciles · median line · this player ●0.73

No passing, progression or defensive actions exist in the dataset, so no trait claims to measure them.

Valuation history every Transfermarkt valuation on record

First valuation
€50k
Jul 2009
Peak
€23M
Jan 2018
Model target
€300k
May 2026
Valuations
50
8 club changes
May 2026€300kKasimpasaValuation the model is trained to reproduce

May 2026: €300k, Kasimpasa. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2009-07-02€50kEintracht Frankfurt
2009-11-09€100kEintracht Frankfurt
2010-01-17€150kEintracht Frankfurt
2010-06-13€250kEintracht Frankfurt
2010-11-23€400kEintracht Frankfurt
2011-01-12€400kEintracht Frankfurt
2011-02-01€800kGaziantepspor
2011-07-01€3.5MGaziantepspor
2012-01-09€2.8MGaziantepspor
2012-06-07€3MGaziantepspor
2013-01-06€3.5MGaziantepspor
2013-06-13€4MGaziantepspor
2014-01-27€6MGaziantepspor
2014-07-23€7MBesiktas JK
2015-01-26€7MBesiktas JK
2015-06-25€6.5MBesiktas JK
2016-01-18€7MBesiktas JK
2016-06-01€8MBesiktas JK
2016-07-15€8MBesiktas JK
2017-01-10€9MBesiktas JK
2017-06-09€9MBesiktas JK
2017-10-06€10.5MBesiktas JK
2018-01-08€23MEverton FC
2018-05-28€23MEverton FC
2018-12-19€20MEverton FC
2019-06-13€18MEverton FC
2019-09-12€15MEverton FC
2019-12-10€15MEverton FC
2020-04-08€12MEverton FC
2020-10-13€9MEverton FC
2020-12-17€7MEverton FC
2021-03-16€6MBesiktas JK
2021-05-21€5MBesiktas JK
2021-10-05€3MEverton FC
2021-12-23€2.5MEverton FC
2022-06-15€2MEverton FC
2022-10-27€2MBesiktas JK
2023-03-14€2.8MBesiktas JK
2023-06-08€3.2MBesiktas JK
2023-09-27€3MBesiktas JK
2023-12-21€2.7MBesiktas JK
2024-03-15€2.5MBesiktas JK
2024-05-31€2MBesiktas JK
2024-10-04€1.7MFenerbahce
2024-12-23€1.4MFenerbahce
2025-03-20€1.2MFenerbahce
2025-06-18€1MFenerbahce
2025-10-01€900kFenerbahce
2025-12-17€500kFenerbahce
2026-05-21€300kKasimpasa

Audit context group-level, not about this player

Audit group
UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
+0.252

The group comes from first-listed citizenship and is never a model input. Across the population, non-UEFA players' market values sit about 10% above Model A's held-out estimates, relative to UEFA players in the same leagues. One player's residual says nothing about that pattern (typical miss ×1.50), and none of it is evidence of discrimination: the target may itself be biased. Open the Fairness Audit

In context observed value among comparable players in this build

All players in the Terminal →

Süper Lig428 players · median €1.2M

Valued above 12% of the 428 Süper Lig players.

€50k€300k€2M€15M€300kSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 8% of the 1,583 attackers.

€20k€300k€5M€75M€300kSee them in the Explorer →

Where Tosun appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

Counts and ranks of observed Transfermarkt values only; model errors are never ranked here. Full player export: Every player in the modelling population (D-011).